League Causes Internet To Crash

I don't know what's going on but ever since Version 6.2.16_01_25_20_50 came out, the moment I enter a game after champion select (to go into loading screen) I get bug splat... then immediately following that, my 5G wifi crashes. The computer stays connected to wifi but it says no internet... for all my devices in my house. This only happens when I go into a game of league... then I have to reboot my router to fix it. After that I click reconnect on league and if I'm lucky, I make it into loading screen where bug splat happens again somewhere around 75% loaded. If I'm not lucky then it says "you have disconnected please check your internet and try again". I don't know what's going on. I tried repair the client. That didn't work. I tried complete uninstall and reinstall. That didn't work. I cleaned up my disk files, ran anti virus, did everything. I still get bug splat and my internet crashes... Now here's the weird part. If I am at my friend's house with my laptop connected to his 5G, I still get the same errors but I don't crash my friend's wifi. His wifi remains normal. My client just crashes. I am so frustrated with this. Anyone else having this problem? If so, is there a fix for this? I lost 5 ranked matches because I couldn't make it pass the loading screen. Lost me series as well. This is so frustrating... If I'm SUPER lucky, I can make it in a game after one bug splat...